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Date:      Wed, 28 Sep 2016 21:08:34 +0300
From:      "Andrey V. Elsukov" <bu7cher@yandex.ru>
To:        John Baldwin <jhb@freebsd.org>, freebsd-current@freebsd.org
Cc:        Ngie Cooper <yaneurabeya@gmail.com>, Ernie Luzar <luzar722@gmail.com>, "Hartmann, O." <ohartman@mail.zedat.fu-berlin.de>
Subject:   Re: Destroy GPT partition scheme absolutely, how?
Message-ID:  <aae98e97-33a9-ea76-3658-f6601b1597f5@yandex.ru>
In-Reply-To: <1785064.lgVzRW13Wf@ralph.baldwin.cx>
References:  <20160926150109.0d0d793e@hermann> <57E92726.2020605@gmail.com> <5484D815-4B17-456B-BA60-CC6F4E97AFE3@gmail.com> <1785064.lgVzRW13Wf@ralph.baldwin.cx>

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From: "Andrey V. Elsukov" <bu7cher@yandex.ru>
To: John Baldwin <jhb@freebsd.org>, freebsd-current@freebsd.org
Cc: Ngie Cooper <yaneurabeya@gmail.com>, Ernie Luzar <luzar722@gmail.com>,
 "Hartmann, O." <ohartman@mail.zedat.fu-berlin.de>
Message-ID: <aae98e97-33a9-ea76-3658-f6601b1597f5@yandex.ru>
Subject: Re: Destroy GPT partition scheme absolutely, how?
References: <20160926150109.0d0d793e@hermann> <57E92726.2020605@gmail.com>
 <5484D815-4B17-456B-BA60-CC6F4E97AFE3@gmail.com>
 <1785064.lgVzRW13Wf@ralph.baldwin.cx>
In-Reply-To: <1785064.lgVzRW13Wf@ralph.baldwin.cx>

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On 26.09.2016 23:51, John Baldwin wrote:
>> Why not just use "gpart destroy -F provider"?
>=20
> That doesn't always work.  In particular, if a disk was partitioned wit=
h GPT
> and then you use normal MBR on it afterwards, the 'gpart destroy -F' of=
 the
> MBR will leave most of the GPT intact and the disk will come up with th=
e old
> GPT partitions, not as a raw disk.

If you would did `gpart destroy -F` for GPT, then it would not have
appeared again.
This is very strange problem, how did you created MBR if you have not
destroyed GPT? :)
After this commit it seems very unlikely to reproduce
	https://svnweb.freebsd.org/base?view=3Drevision&revision=3D292057

Described problem can be reproduced with BSD label.

--=20
WBR, Andrey V. Elsukov


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